linux-kernel - [PATCH 3.16 078/366] ext4: correct endianness conversion in __xattr_check

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Date:   Sun, 11 Nov 2018 19:49:05 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Jan Kara" <jack@...e.cz>,
        "Theodore Ts'o" <tytso@....edu>,
        "Eric Biggers" <ebiggers@...gle.com>
Subject: [PATCH 3.16 078/366] ext4: correct endianness conversion in
 __xattr_check_inode()

3.16.61-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Eric Biggers <ebiggers@...gle.com>

commit 199625098a18a5522b424dea9b122b254c022fc5 upstream.

It should be cpu_to_le32(), not le32_to_cpu().  No change in behavior.

Found with sparse, and this was the only endianness warning in fs/ext4/.

Signed-off-by: Eric Biggers <ebiggers@...gle.com>
Signed-off-by: Theodore Ts'o <tytso@....edu>
Reviewed-by: Jan Kara <jack@...e.cz>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 fs/ext4/xattr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -251,7 +251,7 @@ __xattr_check_inode(struct inode *inode,
 	int error = -EIO;
 
 	if (((void *) header >= end) ||
-	    (header->h_magic != le32_to_cpu(EXT4_XATTR_MAGIC)))
+	    (header->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC)))
 		goto errout;
 	error = ext4_xattr_check_names(entry, end, entry);
 errout: